Cistern



GQn/L ANDERSON.

Patented Nov. 7, i922;

Patented Nov, 7, igh

Gnonen ivi. erinnnson, or AKRON, oirio.

CSTERN.

Application filed May 19, 1921. Serial No. 468,413.

To all colto/m it may conce/ru.' y

Be it known that I, Gnonon M AnoniesoN, citizen of the United States, residing at Akron. inv the county of Summit and State of hio, have invented ne f and useitul improvements in Cisleins, oi? which the lolloiving is a specification.

This invention relates to cistcrns and particularly to a nevv and useful improvement in cisterne ot the type usually constructed of mason Worlr sunk in the ground and commonly usedv to store Water forv subsequent use.

Other objects of the invention are to provide a cistern orp simple, economical construction in which a large amount `of Water` may be stored and to provide a new and iniproved arrangement ot* parts therefor, whereby properly aerated` iiltered Water may be dra-Wn therefrom.

'A 'further object is to provide a strong, substantial cistern Which is provided with a lilter-stone, arranged therein to partition the cistern into an upper and lower chamber so that the upper chamber may be used to receive thek unfiltered vra-ter and the loiver chamber, the filtered Water, and to vprovide inea-ns whereby a supply of Water may be constantly maintained in said lowerch amber troinwvhioh it may be drawn for use;

A still further object ot the invention is to provide a cistern ot the type above designated and to provide means whereby Water may be drawn from the lower chamber thereof and a partial vacuumV created in said lower chamber which Will materially facilitate the passage of the Water through said stone. l

An additional object is to provide means whereby the liltered Water inthe lo Wer chamber may be properly aora-ted Without'produeing a compression of air in the upper portion of said chamber.

Thelabovefobjects are accomplished and other. .ends are attained by the novel construction, combination and arrangement oi parts hereinafter described and illustrated in the accompanying drawing, which forms a part hereoiand in which I have shown a in the drawings in which l have employed similar numerals of f Eerence to indicate correspond-ing parts throughout the several. views, and in Which,--

Figure l is a ernitral,` vertical, sectional. `view oit a cistern constructed in accordance with this invention.

Figure 2 isa side eleva ion oit a portion of an air pipe employed in carrvi out the invention and showing in central vertical section a portion olf the valve used thereon.

Figure 3 is a horizontal, sectional view talren as indicated by the lines 3 3 oit Figure l.

A cistern constructed in accordance with this invention is usually composed oi brich- Worlr, cement, or other mason ivorlr sunk in the ground and comprises 'tv-.fo hollow, substantially globular portions 6 and i', one arranged above the other tor form an upper chamber 8 and a lower chamber 9. rihe lower portion (3 is substantially smaller than the upper portion 7 which is constructed thereon so as to be integral therewith7 thus ii'irming a container provided with a Waist i0. The waist l0 i'orins a seat for the circular filter stone il, the marginal portions of which are cemented against the interior surjace of the upper portion Y, thus closing "the communicating opening` between two portions and forming partition between the chamber 3 and the Chamber 9. The upper portion T terminates in a tubular necir lwhich projects upwardly therefrom and is provided with a top :l2 constructed of ceinent or other suitable material.` The top' l2 is provided with a .lid l3 which is arranged to cover anopening in said top i9'. The numeral la is used to denote :in i let pipe through which 'ir/eter adniitteiA io the chamber o and the numeral 15 denotes an outlet pipe which extends into the chamber 9 for the purpose oit draiviingv water therevfrom. The other end or' the pipe l5 is connected to a suction pump (not shown) or other suitable ine-ans., whereby water may be drawn from said chamber. j

rEhe numeral 16 indicates an air pipe which leads 'from the atmospherek downwardly to a point adjacent the bottoni oit the chamber 9 and terminates in a. horizontal tube 17, the Wall oit which is provided with a plurality of closely spaced pericrations 18. Both the pipe l5 and the pipe i6 pass through the filter stone il and the opening llO in said stone through which said pipes extend are carefully cemented so as to lorm an impervious juncture between the exterior surface ot said pipes and the lilter stone. The member 19 is interposed in the pipe 1G directly beneath the stone l1 and comprises a coupling provided with a downwardly inclined tubular protuberanee. i circular apertui'e 21 is formed on the underside or' the extreme end ol said protuberance and a ball 2*? is positioned in said protuberance 20 so as to normally seat in said aperture.

It will be seen that a valve is thus formed wh ich will permit air to pass from the chamber 9 throughthe aperture f2.1 to the pipe 1G, but that no air can enter the chau'iber il through the aperture 21, inasmuch as the ball ,22 is seated in said opening. rllhe walls olf both the chamber 8 and the chamber 9 are provided with a coating 23 of cement or other suitable material whereby thesame is rendered impervious. l

ln use, water is introduced in the chamber 8 preferably through a pipe let which may be connected to a down spout leading from' anv eaves-trough or may be connected to any source oi' waterl supply. The water in the chamber 8 will lilter through the stone 1l into the chamber 9 which will be gradually lilled with filtered water. As the level oi the water raises in the chamber 9 the air contained therein will escape through the aperture 21 as it isrdisplaced by water and the pressure in said chamber is thus prevented from exceeding that of the atmosphere.

As water is drawn from the chamber El through the pipe 15, a partial vacuum will be formed in the upper part ot the chamber 9 which greatly facilitates thc passage ot water through the said stone 11 and seats the ball 22 in the aperture 2l.

`lt will thus be seen that the valve in the protuberance 20 will not permit the passage of air from the pipe 16 to the upper part oi `the chamber 9 and that, it su'liieient 'water is drawn from the chamber 9, the pressure will be lowered to a point that will be sul'icient to draw air through the pipe 16 and cause it to issue from the aperture 18 in the horizontal portion 17 of said pipe. The buoyancy of the air will cause it to travel upwardly through the water and the suction in the upper part oi the said chamber 9 will be thus relieved.

It will thus be seen that the liltered water in said chamber will be properly aerated and that a constant supply of pure fresh water thus insured.

Having thus described my invention what l claim as new and desire to secure by Letters-Patent is y l. In a cistern, an upper and alower chamber, a vFilter stone sepa `ating said chambers,

means to draw liuid from said lower chamber, a pipe leading from a point near the bottom or' said lower chamber and extending upwardly to the atmosphere, an. opening from said pipe to said chamber adjacent the upper wall thereof, and a check valve controlling said opening so that air under pressure may low outwardly therethrough.

2. A eistern comprising a` container adapted to hold water, a iilter stone extending thereacross so as to term therein an upper and a lower chamber, a pipe extending upwardly from a point adjacent the bottom o'l" said lower chamber tothe atmosphere, said pipe provided at thel lower end thereof with a horizontal extension, a. plurality oit openings in the wall of said extension, van opening in said pipe at a point adjacent the top of said lower chamber, a checli valve controlling the last named opening so as to permit air to escape from saidchamber tl'nfough said opening and prevent the entrance of air therethrough, and 'means to draw a lluid l'rom said lower chamber.

3. A cistern comprising acontainer adapted to hold water, the walls oi' said container con verging' at a point intermediate its height to torni a relatixf'ely narrow neck, a iilter stone extending across 'the opening in said neel; so as to divide said container into an upper and a lower chamber, means to draw water from said lower chamber, a pipe e):n tending fromV a point adjacent the bottom ot said chamber upwardly therethrough to the atmosphere, .thelower end oit said pipe provided with a horizontal extension, plurality ol openings in the wall et said extension. au opening in said pipe adjacent the top oi said lower chamber and a check valve controlling said opening so that air may pass outward ly therethrough.

at. A cistern comprising a container ot mason-work sunk into the ground, the wall ot said container converging at a point intermediate 'its height to form a relatively narrow neck, a filter stone extending across the opening in said neck as to divide said container into an upper and lower cl'iambcr, an outlet comprising a pipe leading to a pump adapted to draw water therefrom, a rent pipe leading from the atmosphere to a point" adjacent the bottom oit' said lower chamber; a horizontal extension on the lower end olsaid pipe.y a plurality et openings in the wall ot said extension, an opening in said vent pipe to said lower chamber adjacent the top thereof and a check valve controlling said opening so that air may pass outwardly but not inwardly.

In testimony whereof l have hereunto set myhand.

Geenen M, inmensos. 

